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ANSWER KEY *** of the Four Elements, Which Has Properties Print Test Page 1 of 33 *** ANSWER KEY *** Student Name: Grade: 09 Test Name: November Chemistry for All: Unit 2 - Periodic Table Version: 1 1. Of the four elements, which has properties most similar to that of sodium (Na)? (a) boron (B) (b) sulfur (S) (c) calcium (Ca) (d) nitrogen (N) Standard: MI_CHEM_HS-0912-C4-9-A MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.9 Periodic Table C4.9A Identify elements with similar chemical and physical properties using the periodic table. https://assessment.resa.net/Demo_Home/TD/TestReport4.aspx 2/24/2010 Print Test Page 2 of 33 2. Based on their locations on the periodic table, which of the following is true about oxygen (O) and selenium (Se)? (a) they have the same number of neutrons (b) they have the same conductivity (c) they have similar properties (d) they have the same number of electron orbitals Standard: MI_CHEM_HS-0912-C4-9-A MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.9 Periodic Table C4.9A Identify elements with similar chemical and physical properties using the periodic table. 3. Looking at the periodic table, which is true about neon (Ne) and argon (Ar)? (a) both are very stable (b) both are good conductors of electricity (c) both are highly reactive (d) both are explosive when combined with oxygen Standard: MI_CHEM_HS-0912-C4-9-A MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.9 Periodic Table C4.9A Identify elements with similar chemical and physical properties using the periodic table. https://assessment.resa.net/Demo_Home/TD/TestReport4.aspx 2/24/2010 Print Test Page 3 of 33 4. Looking at the periodic table, which is true about beryllium (Be) and calcium (Ca)? (a) both are less reactive than lithium (Li) and potassium (K) (b) both are less reactive than neon (Ne) and krypton (Kr) (c) both are less dense than lithium (Li) and sodium (Na) (d) both have the same electron configurations as chlorine (Cl) and bromine (Br) Standard: MI_CHEM_HS-0912-C4-9-A MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.9 Periodic Table C4.9A Identify elements with similar chemical and physical properties using the periodic table. 5. Using the periodic table, identify which element is a metal. (a) chlorine (Cl) (b) krypton (Kr) (c) selenium (Se) (d) zinc (Zn) Standard: MI_CHEM_HS-0912-C4-9x-b MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.9x Electron Energy Levels C4.9b Identify metals, non-metals, and metalloids using the periodic table. https://assessment.resa.net/Demo_Home/TD/TestReport4.aspx 2/24/2010 Print Test Page 4 of 33 6. Using the periodic table, which element is a non-metal? (a) boron (B) (b) calcium (Ca) (c) selenium (Se) (d) lead (Pb) Standard: MI_CHEM_HS-0912-C4-9x-b MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.9x Electron Energy Levels C4.9b Identify metals, non-metals, and metalloids using the periodic table. 7. Using the periodic table, which of the following is an example of a metalloid? (a) hydrogen (H) (b) boron (B) (c) manganese (Mn) (d) silver (Ag) Standard: MI_CHEM_HS-0912-C4-9x-b MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.9x Electron Energy Levels C4.9b Identify metals, non-metals, and metalloids using the periodic table. https://assessment.resa.net/Demo_Home/TD/TestReport4.aspx 2/24/2010 Print Test Page 5 of 33 8. Imagine a new element is discovered. This element has a shiny luster and conducts electricity only moderately. In which region would you place this element? Explain your choice (a) (b) (c) (d) Standard: MI_CHEM_HS-0912-C4-9x-b MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.9x Electron Energy Levels C4.9b Identify metals, non-metals, and metalloids using the periodic table. https://assessment.resa.net/Demo_Home/TD/TestReport4.aspx 2/24/2010 Print Test Page 6 of 33 9. Using the periodic table and the graph below, which statement best describes the trend in atomic radii as you move across a period on the periodic table? (a) atomic radii generally decrease across a period (b) atomic radii generally increase across a period (c) elements in the same period have the same size atoms (similar atomic radii) (d) atomic radii are not affected by location on the periodic table Standard: MI_CHEM_HS-0912-C4-9x-c MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.9x Electron Energy Levels C4.9c Predict general trends in atomic radius, first ionization energy, and electonegativity of the elements using the periodic table. https://assessment.resa.net/Demo_Home/TD/TestReport4.aspx 2/24/2010 Print Test Page 7 of 33 10. Observe the atomic radii of the group 1 elements (Li, Na, K, Rb and Cs) on the graph. Which statement best describes the trend in atomic radii as you move down group? (a) atomic radii decrease down a group (b) atomic radii increase down a group (c) elements in the same group have the same size atoms (similar atomic radii) (d) atomic radii are not affected by location on the periodic table Standard: MI_CHEM_HS-0912-C4-9x-c MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.9x Electron Energy Levels C4.9c Predict general trends in atomic radius, first ionization energy, and electonegativity of the elements using the periodic table. https://assessment.resa.net/Demo_Home/TD/TestReport4.aspx 2/24/2010 Print Test Page 8 of 33 11. Using the periodic table, which element has the highest electronegativity? (a) flourine (F) (b) iodine (I) (c) boron (B) (d) hydrogen (H) Standard: MI_CHEM_HS-0912-C4-9x-c MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.9x Electron Energy Levels C4.9c Predict general trends in atomic radius, first ionization energy, and electonegativity of the elements using the periodic table. https://assessment.resa.net/Demo_Home/TD/TestReport4.aspx 2/24/2010 Print Test Page 9 of 33 12. Which diagram shows the correct periodic trends for increasing electronegativity? (a) (b) (c) Standard: MI_CHEM_HS-0912-C4-9x-c MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.9x Electron Energy Levels C4.9c Predict general trends in atomic radius, first ionization energy, and electonegativity of the elements using the periodic table. https://assessment.resa.net/Demo_Home/TD/TestReport4.aspx 2/24/2010 Print Test Page 10 of 33 13. Copper has two naturally occurring isotopes. Use the data table to calculate the average atomic mass Isotope Mass (amu) % abundance Cu-63 62.94 amu 69.17% Cu-65 64.93 amu 30.83 (a) 20.02 amu (b) 43.53 amu (c) 63.55 amu (d) 63.94 amu Standard: MI_CHEM_HS-0912-C4-10x-c MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.10x Average Atomic Mass C4.10c Calculate the average atomic mass of an element given the percent abundance and mass of the individual isotopes. https://assessment.resa.net/Demo_Home/TD/TestReport4.aspx 2/24/2010 Print Test Page 11 of 33 14. Calculate the average atomic mass of oxygen. Use the data table below Isotope Mass (amu) % abundance O-16 15.99 99.76 O-17 17.00 0.038 O-18 18.00 0.20 (a) 15.99 amu (b) 16.99 amu (c) 17.00 amu (d) 18.00 amu Standard: MI_CHEM_HS-0912-C4-10x-c MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.10x Average Atomic Mass C4.10c Calculate the average atomic mass of an element given the percent abundance and mass of the individual isotopes. https://assessment.resa.net/Demo_Home/TD/TestReport4.aspx 2/24/2010 Print Test Page 12 of 33 Instructions for questions 15 through 17. An unknown element has three natural isotopes. Using the information below to answer the next three questions Isotope Atomic mass (amu) % abundance A 19.992 90.48 B 20.994 ? C 21.991 9.25 15. What is the percent abundance of isotope B? (a) 0.27% (b) 9.52% (c) 81.43% (d) 99.73% Standard: MI_CHEM_HS-0912-C4-10x-c MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.10x Average Atomic Mass C4.10c Calculate the average atomic mass of an element given the percent abundance and mass of the individual isotopes. https://assessment.resa.net/Demo_Home/TD/TestReport4.aspx 2/24/2010 Print Test Page 13 of 33 16. What is the average atomic mass of this element? (a) 19.99 amu (b) 20.99 amu (c) 20.18 amu (d) 21.18 amu Standard: MI_CHEM_HS-0912-C4-10x-c MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.10x Average Atomic Mass C4.10c Calculate the average atomic mass of an element given the percent abundance and mass of the individual isotopes. 17. What is the identity of this element? (a) Helium (H) (b) Neon (N) (c) Argon (Ar) (d) Krypton (Kr) Standard: MI_CHEM_HS-0912-C4-10x-c MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.10x Average Atomic Mass C4.10c Calculate the average atomic mass of an element given the percent abundance and mass of the individual isotopes. https://assessment.resa.net/Demo_Home/TD/TestReport4.aspx 2/24/2010 Print Test Page 14 of 33 18. Based on the average atomic mass of Oxygen (15.99 amu) which of the following isotopes has the highest abundance? (a) 15O (b) 16O (c) 17O (d) 18O Standard: MI_CHEM_HS-0912-C4-10x-d MI HSCEs Science - Chemistry 09-12 STANDARD C4: PROPERTIES OF MATTER Topic C4.10x Average Atomic Mass C4.10d Predict which isotope will have the greatest abundance given the possible isotopes for an element and the average atomic mass in the periodic table.
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